The uni-ball Vision pen has free-flowing and fluid ink, similar to a fountain pen. Soft grip makes extended writing sessions more comfortable. Uni Super ink is specially formulated to become trapped in paper, helping prevent criminal check washing and other document alteration. Quick-drying, acid-free, archival-quality ink is fade- and water-resistant to last over time. Visible ink supply so you know before you run out. Uni-Ball Vision Stick Rollerball Pens, Fine Point, Black Ink, Pack of 12 (60126)